小制作管件、法兰、短管连接

1、1 范 围1.1 本标准规定了石油化工装置配管设计过程中B系列国标管件之间及其与JB钢制管法兰和短管间的最小连接尺寸。1.2 本标准适用于石油化工装置配管设计过程中DN15DN40 B系列和DN40DN500 B系列国标管件及其与JB钢制管法兰之间连接。1.3 本标准不适用上述管件与ANSI法兰、SH法兰之间的连接。2 一般规定2.1 本标准中所采用的各类管道组成件应符合以下规定管件：钢制对焊无缝钢管GB/T124592005（B系列）钢制承插焊管件 GB/T1438393（B系列）钢板制对焊管件 GB/T134012005（B系列）法兰：凸台面板式平焊钢制管法兰 JB/T8194（系列2）凸

2、台面对焊钢制管法兰 JB/T82.194（系列2）凹凸面对焊钢制管法兰 JB/T82.194（系列2）环连接面对焊钢制管法兰JB/T82.494（系列2）2.2 管子壁厚应符合石油化工企业钢管尺寸系列（SH3405）的规定。2.3 对焊件之间的焊缝间隙按零计算。2.4 有关弯头的连接尺寸均以长半径弯头（L）的基准进行计算；使用短半径弯头（S）时，需要重新计算。2.5 法兰与三通之间的连接尺寸“H”或“J”是以等径三通的尺寸（M值）算出的；使用异径三通时，需重新计算，即三通M值与法兰D值（E值）之和。2.6 平焊法兰之间的连接按单头螺栓考虑，对焊法兰之间的连接按双头螺柱考虑，双头螺柱的螺母为加厚

3、型。3 符号说明3.1 在各个管道连接最小尺寸中使用的符号规定如下：L 长半径（R=1.5DN）90对焊弯头尺寸；S 短半径（R=1DN）90对焊弯头尺寸；D 平焊法兰加短管的最小尺寸；E 对焊法兰的最小尺寸；F 按长半径弯头尺寸和“D”值确定的最小尺寸；G 按长半径弯头和“E”值确定的最小尺寸；H 按等径三通尺寸和“D”值确定的最小尺寸；J 按等径三通尺寸和“E”值确定的最小尺寸；SO 平焊法兰WN 对焊法兰3.2 各类阀门尺寸所使用的符号规定如下：L 分别为“Z41”，“J41”和“H44”型阀门的结构长度；H 为闸阀或截止阀阀杆全开时的高度或止回阀的凸起部高度；D0 手轮直径。4管道连接

4、最小尺寸41DN15承插件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN2.5PN4.0PN4.0PN4.0PN6.3PN6.3PN10PN16A959595959595105105105110B141616161824.526.530.5C1214D6060E353535354854.554.556.5F100100G115115115115130140140150HJKN螺栓直径M12X40M12X50M12X60M12X70M12X70M12X70M12X70M12X85M12X85M16X10螺栓数量44

5、44444444闸阀 L130130130130130170170170170H250250235235235235235250250Do160160200200200200200200200截止阀L100100130130130170170170170H111111230220220220220231240Do6565120200200200200200200止回阀42DN20 承插件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.5PN4.0PN4.0PN6.3PN6.3PN10PN16A1051

6、05105105105105125125125130B141616162026.528.532.5C1416D6060E383636365662.562.561.5F100100G130130130130150150150150HJKN螺栓直径M12X50M12X50M12X60M12X70M12X70M12X70M12X80M12X95M16X100M20X11螺栓数量4444444444闸阀 L150150150150150190190190190H305305284284284284284288280Do160160250250250250250250250截止阀/p>

7、0150190190190190H132132275258258258258306272Do6565140250250250250250250止回阀43 DN25 承插件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.5PN4.0PN4.0PN6.3PN6.3PN10.0PN16.0A115115115115115115135135135140B141616162228.530.534.5C1416D6060E403838385864.564.561.5F110110G1301301301301501

8、60160160HJKN螺栓直径M12X50M12X60M12X60M12X70M12X70M12X70M16X80M16X100M16X100M20X120螺栓数量4444444444闸阀 L160160160160160210210210210H330330303303303303303310310Do180180250250250250250250250截止阀L160160160160160210210210210H142142295272272272272306295Do8080160250250250250250250止回阀160160160210210H14514514514514

9、544DN40承插件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.5PN4.0PN4.0PN6.3PN6.3PN10.0PN16.0A145145145145145145165165165175B161818182430.532.538.5C1416D6060E454848486874.576.571.5F130130G140150150150170170180170HJKN螺栓直径M16X60M16X60M16X70M16X80M16X80M16X80M20X100M20X115M20X110M2

10、4X140螺栓数量4444444444闸阀 L240240200200200240240260260H425425358358358358358395395Do200200300300300300300300350截止阀L200200200200200260260260260H203203354323323323323380375Do160160200300300300300350350止回阀200200200260260260260H16016016016216245DN40对焊件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.

11、0PN1.6PN1.6PN2.5PN4.0PN4.0PN6.3PN6.3PN10.0PN16.0A145145145145145145165165165175B161818182430.532.538.5C1820D7070E454848486874.576.571.5F110110G102105105105125132134129H127127J102105105105125135134129K7575N100105105105125130135130螺栓直径M12X50M12X60M12X60M12X70M12X70M12X70M16X80M16X100M16X100M24X140螺栓数量

12、4444444444闸阀 L240240200200200240240260260H425425358358358358358395395Do200200300300300300300350350截止阀L200200200200200260260260260H203203354323323323323380375Do160160200300300300300350350止回阀200200200260260H16016016016016246DN50对焊件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.

13、5PN4.0PN4.0PN6.3PN6.3PN10.0PN16.0A160160160160160160175175195215B1620202026343644C1822D7080E4848484870788098F110110G124124124124146154156174H134144J112112112112134142144162K7580N105105105105125130130155螺栓直径M16X60M16X70M16X70M16X80M16X80M16X80M20X100M20X110M22X120M22X140螺栓数量4444444444闸阀 L250250250250

14、250250250300300H402402415415415415415467467Do200200350350350350350400400截止阀L230230230230230300300300300H230230412373373373373430455Do180180240350350320320400400止回阀230230230300300300300H17716016017717721021047DN65对焊件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.5PN4.0PN4.0PN6

15、.3PN6.3PN10.0PN16.0A180180180180180180200200220245B1822222228364052C2024D7080E50525252758392113F165175G143147147147170178187208H146156J126128128128151159168189K95100N125130130130150160170190螺栓直径M16X60M16X70M16X80M16X90M16X90M16X90M20X10M20X12M22X13M27X16螺栓数量4448888888闸阀 L265265265280280280280280340H

16、402402452548548473473545620Do200200240240240280280480400截止阀L290290290290290340340340H260260445433433430430462Do180180240280280320320450止回阀290290290340340340H18519219219719722748DN80对焊件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.5PN4.0PN4.0PN6.3PN6.3PN10.0PN16.0A19519519519

17、5195195210210230260B2020242430384254C2024D7080E52555858758398118F184194G166169172172189198212232H156166J138141144144161169184204K95100N130130135135150160165195螺栓直径M16X60M16X70M16X80M16X90M16X90M16X90M20X11M20X12M22X14M27X17螺栓数量4888888888闸阀 L280280280310310310310310390H526526530600600546546605680Do24

18、0240280280280320320320400截止阀L310310310310310380380380H385385460468468465465595Do200200320320320360360360止回阀310310310380380380380H19518518521221223523549DN100对焊件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.5PN4.0PN4.0PN6.3PN6.3PN10.0PN16.0A215215215230230230250250265300B2024

19、262632404656C2226D110110E606268688088108128F262262G212214220220232240260280H215215J165167173173185193213233K100105N135140145145155165185205螺栓直径M16X70M16X80M16X80M20X10M20X10M20X10M22X12M22X13M27X16M30X19螺栓数量8888888888闸阀 L300300300350350350350350450H588588620684684633633665680Do2402403203203203603604

20、00400截止阀L350350350350350430430430H430430524500500550550671Do280280360360360450450450止回阀350350350430430430430H217220220248248272274410DN125对焊件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.5PN4.0PN4.0PN6.3PN6.3PN10.0PN16.0A245245270270270270295295310355B2226282836445068C2428D1

21、10110E6068686898106123148F300300G250258258258288296312338H234234J184192192192222230246272K100105N135145145145175180200225螺栓直径M16X70M16X80M16X90M22X11M22X11M22X11M27X13M27X15M30X17M36X22螺栓数量8888888888闸阀 L325325325400400400400400525H740740756776776772772780900Do360360360360360400400400560截止阀L400400400

22、400400H477477510510510Do280280400400400止回阀400400400500500H250265265296296411DN150对焊件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.5PN4.0PN4.0PN6.3PN6.3PN10.0PN16.0A280280280300300300340340350390B2228303038465476C2428D110110E60727272108116138165F339339G28930130130133734536739

23、4H253253J203215215215251259281308K100105N135150150150185195215240螺栓直径M20X80M20X80M20X90M22X11M22X12M22X12M30X14M30X17M30X19M36X24螺栓数量888888881212闸阀 L350350350450450450450450600H720720845900900892892980985Do360360360360360450450400560截止阀L480480480480480550550H575575674674674715715Do320320400400400450

24、450止回阀480480480550550550550H290276276330330350340412DN200对焊件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.5PN4.0PN4.0PN6.3PN6.3PN10.0PN16.0A335335335360375375405405430480B2430383844526289C2430D110110E62808888116124153196F415415G367385393393421429458501H288288J240258266266294

25、302331374K105110N145160170170200205235275螺栓直径M20X80M20X90M20X10M22X11M27X14M27X14M30X16M30X18M36X21M42X27螺栓数量8121212121212121212闸阀 L400400400550550550550550750H88588510411110111011001100972160Do400400400450450450450560720截止阀L600600600600600H873873806806806Do400400640640640止回阀550550550650650650650H30

26、0342342385385374374413DN250 对焊件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.5PN4.0PN4.0PN6.3PN6.3PN10.0PN16.0A390405405425445445470470500580B2632424248566899C2632D110120E6885102102122130178241F491501G449466483483503511559622H326336J284301318318338346394457K120125N1601751951

27、95215220270335螺栓直径M20X80M22X90M22X10M27X13M30X16M30X16M36X17M36X20M36X23M48X30螺栓数量12121212121212121212闸阀 L450450450650650650650H1098109812441348134813721372Do450450450560560560560截止阀L650650650H880880880Do720720720止回阀650650650775775775775H401401401445445450500414DN300 对焊件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法

28、兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.5PN4.0PN4.0PN6.3PN6.3PN10.0PN16.0A440460460485510510530530585665B28364646546278114C2832D110120E7092116116136144203289F567577G527549573573593601660746H364374J324346370370390398457543K130135N170195220220240245305390螺栓直径M20X80M22X90M22X11M27X13M30X16M30X16M36X1

29、9M36X21M42X250螺栓数量121212161616161616闸阀 L500500500750750750750H1232123214741348134816801680Do560560560560560640640截止阀L750750750H975975975Do800800800止回阀750750750900900900900H441440440460460505505415DN350 对焊件配管连接最小尺寸 单位：mm 压力等记 号 级凸台面平焊法兰凸台面对焊法兰凹凸面对焊法兰梯形槽面对焊法兰PN1.0PN1.6PN1.6PN2.5PN4.0PN4.0PN6.3PN6.3PN10.0PN16.0A500520520550570570595595665B32405252606887C2834D110120E7898120120154162221F643653G611631653653687695754H389399J357377399399433441500K135140N185205225225260270330螺栓直径M20X80M22X10M22X12M30X15M30X18M30X18M36X20M36M48螺栓数量161616161616161616闸阀 L55055055085085